User manual

Installation
6
Changing Configuration with Transceivers
You can attach cable of different media to one or both channels via a
transceiver. Table 3 list the transceivers avaiable.
Table 3: ATI Micro Transceiver Choices
Switching Configuration with Jumpers
Each channel can be switched between the BNC connector (labeled
10BASE2) and the AUI connector (labeled 10BASE5). To switch connectors,
you move a jumper block inside the bridge chassis.
Channels A and B are set at the factory to operate with pre-802.3 Ethernet or
IEEE 802.3 10BASE5.
To determine which port is connected
If you are not sure which port is active for a given channel, you can check as
follows:
1. Connect one of the channel’s two ports to a cable that is transferring data.
2. If the channel’s Receive indicator flashes, you have selected the active
port, if not, the other port is active.
To change the jumper block
If you need to switch port connections for Channel A and/or Channel B, find
the locations of the jumper blocks as shown in Figure 2. Look up the proper
jumper block position(s) as listed in Table 4.
1. Remove the power cord and any cables from the AT-3675 front panel.
Opening the bridge without unplugging the power cord may expose personnel
to high voltage, risking the possibility of injury or death. See safety
statements starting on page i.
2. Remove the three screws along the front edge of the top.
3. Turn the bridge upside-down and loosen the top cover by removing the
three screws along each side and the three screws along the back.
4. Remove the top cover by sliding it towards the back. If the cover fits
tightly, use a screwdriver to dislodge it.
Model Description
AT-MX25F Fiber Optic (FOIRL, 10BASE-FL), SMA Connector
AT-MX26F Fiber Optic (FOIRL, 10BASE-FL), ST Connector
AT-210T/AT-210TS/AT-MX20T UTP (10BASE-T)
AT-MX10/AT-MX10S Thin Ethernet (10BASE2)
Note
Warning